Smash the ASE B6 Damage Analysis Exam 2025 – Rev Up Your Estimating Skills!

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Question: 1 / 160

How can galvanic corrosion be prevented?

By using stainless steel screws

By using coated bolts with a specific color

Preventing galvanic corrosion involves understanding the interactions between different metals in the presence of an electrolyte. The choice related to using coated bolts plays a significant role in this prevention strategy.

When dissimilar metals come into contact with each other in an electrolyte, galvanic corrosion can occur as one metal acts as an anode (corroding) while the other acts as a cathode (protected). The use of coated bolts helps to insulate the metals from direct contact, thereby inhibiting the electrochemical reaction that leads to corrosion. The coating serves as a barrier that prevents moisture, which is often the electrolyte in such scenarios, from reaching the underlying metal surfaces.

Using coated bolts that are color-coded can also assist in ensuring proper identification and application, enhancing overall maintenance and reducing the risk of incorrect material pairings that may lead to corrosion. The specific color of the coating doesn't directly affect corrosion prevention; rather, it facilitates proper installation and maintenance of dissimilar metal connections.

Overall, employing coated bolts effectively interrupts the connection necessary for galvanic corrosion to occur, making this method a practical and efficient means to protect metal components in environments where different metals are used together.

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By increasing the thickness of metal components

By applying a sealant to dissimilar metals

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